The RC1319CS-100110 from ZTS Technologies is a RF & Microwave Circulator with Frequency 10 to 11 GHz, Average Power Forward 30 W, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -10 to 60 Degree C. Tags: Module with Connectors, Coaxial Circulator. More details for RC1319CS-100110 can be seen below.